Blue Sand

you could refer to description

automatic temperature control

item doesnt include the protected pcb casing,
the pcb casing that is use to store or keep the battery is sold separately

cannot use this adaptor

item is price per item,
for the moment we do not have such offering of foc

this is for small usage, where you use it for 10 min or less , and once a week usage,
i believe there is non of such 7 hour usage non stop ultrasonic available in the market,

let us know if you find one

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